The press doesn’ t seem to be very well informed. 新闻界似乎并不是消息很灵通。
+about/on The sales staff are well informed about all of the different computers. 销售部职员对各种各样的电脑都很熟悉。
awell-informed debate/opinion/decision 有理有据的争论/正确的看法/可靠的决定